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treatment schedule(s) by commodity (example—apples, pears, or
citrus) or by pest (example—Mediterranean fruit fly). Some
1 If fumigating oak logs or lumber for export, the unit must be capable of reading 400 oz.
2 T/C unit must be calibrated annually by the Center for Plant Health Science and Technology (CPHST). If
requested, CPHST will calibrate a commercial fumigator’s T/C unit.
3 If fumigating oak logs or lumber for export, the unit must be capable of reading 400 oz.
4 T/C unit must be calibrated by CPHST. If requested, CPHST will calibrate a commercial fumigator’s T/C
unit.
Chemical Treatments Fumigants • Methyl Bromide • Special Procedures for Container Fumigations Without a Tarpaulin
Preparing to Fumigate
2-8-4 Treatment Manual 10/2002-04
PPQ
commodities may have several treatment schedules. The
“Fumigants—Methyl Bromide” section on Residual Effects lists those
commodities which may be damaged by MB. Each treatment schedule
lists the target pest or pest group (e.g., Ceratitis capitata, surface
feeders, wood borers...), commodity, or both pest and commodity. If
there is no schedule, contact the Center for Plant Health Science and
Technology (CPHST) in Raleigh, North Carolina, to see if a schedule is
available under a FIFRA Section 18 Exemption. If a treatment is
required, go to Table 2.2.1.
Step 2—Issuing a PPQ Form 523 (Emergency Action Notification)
When an intercepted pest is identified and confirmed by a PPQ Area Identifier
as requiring action, issue a PPQ Form 523 (Emergency Action Notification) to
the owner, broker, or representative. Be sure to list all treatment options when
completing the PPQ Form 523 (Emergency Action Notification). Follow
instructions in Appendix 1 for completing and distributing the PPQ Form 523
(Emergency Action Notification).
Step 3—Determining Section 18 Exemptions and Sampling
Requirements
After selecting the treatment schedule, you will be able to determine which
treatment schedules are FIFR A Section 18 Exemptions by the presence of broad,
bold, vertical lines on the borders of the treatment schedule table listed in the
reference. Some treatment schedules are only FIFRA Section 18 Exemptions at
specific temperature ranges. Check the treatment schedule and temperature to
determine if the fumigation will be a FIFR A Section 18 Exemption.
Food or Feed Fumigations
Residue monitoring by taking samples of the commodity prior to the
start of the fumigation and after aeration is no longer required.
Step 4—Selecting a Fumigation Site
Consider the following factors in selecting a fumigation site:
◆ A well-ventilated, sheltered area
◆ Ability to heat area (in colder areas)
◆ A nonwork area which can be effectively marked and
safeguarded or isolated
◆ Electrical power supply
◆ Water supply
TABLE 2-8-1: Determine Reporting Requirements
If a treatment is required: Then:
As a result of a pest interception GO to Step 2
As a condition of entry GO to Step 3
Chemical Treatments Fumigants • Methyl Bromide • Special Procedures for Container Fumigations Without a Tarpaulin
Preparing to Fumigate
10/2002-04 Treatment Manual 2-8-5
PPQ
◆ A well-lighted area
◆ Aeration requirements
A Well-Ventilated Area
Select sites which are well-ventilated. A well-ventilated site is required
for exhausting gas.
Some gas will escape from the container even in the best conditions.
Ensure that the exhausted gas does not endanger people working
outdoors. When treatments are conducted in a particular location on a
regular basis, a permanent site should be designated. Select a site
that is semi-sheltered such as the leeward side of a warehouse or pier.
A Nonwork Area
Select a secure area where traffic and people are restricted from
entering and which is isolated from people working. You want a
non-work area to help prevent accidents such as a forklift piercing a
container and for other safety reasons. Consider either the entire
structure area or an area which extends 30 feet from the container
and is separated by a physical barrier such as ropes, barricades, or
walls as the fumigation area. Some states, for example California,
require a 100-foot perimeter around fumigation sites. If a wall of
gas-impervious material is less than 30 feet from the container, the
wall may serve as the edge of the secured area. Place placards clearly
in sight of all who come near. Placards must meet label requirements
regarding specific warnings, information, and language. Placards
generally include the name of the fumigant, the fumigation date, time,
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